Each Year between the months of May - November, Over 15,000 Humpback Whales make their way up the Eastern Coastline of Australia on their Northern Migration to the sub-tropical waters of Hervey Bay, QLD travelling a total of 7204kms (3809 nm). The Whales will then mate and give birth to their young. 

A new-born calf is born approximately 4m in length and weigh 1 tone. They generally stay with their mothers for 11-12 months before they become indepedent. 

Here in Jervis Bay, the Migrating Humpback Whales generally cruise past the entrance to the bay on their Northern Migration between the months of June and August. As the population of Humpback Whales is increasing approximately 14% every year, there gap between seeing the Whales heading up North, and seeing the Whales heading back down South is getting much shorter. On their Southern Migration, these Whales tend to come into Jervis Bay for a rest with their calves which by this time are around 7m in length and weigh 9-10 tones. These Whales are generally sighted on their Southern Migration here in Jervis Bay bewteen the months of September and November. 

Whales can grow anything upto 19m in length and weigh upto 45 tones. The Humpback Whale is not the largest Whale that migrates up the Eastern Coastline of Australia but they are definately known as the most iconic of the Whales. The Humpback Whales is known for having the longest Pectoral Fin in all the cetacrean species, reaching the length of a third of their body size. 

Humpback Whales have polarized vision and are able to see out of the water as well as they can under the water. They also have hair follicles on their head which are known as tubercles. 

When Humpback Whales 'Sing' they produce sounds of approximately 170 desibels which is equivilant to standing behing a large jet plane at take off.